On file-roller, if the user select a file, and then select View icon on the toolbar, of the View File from the pop up menu, it usually fails with the message:

Could not perform the operation
Error launching command

With more observation found that not all files fail the view operation. The files that on my setup work correctly were image files like png, jpg, xbm, svg, and other graphic formats. While text, glade files and others refuse to work.
Image files where previewed on either gimp or inkscape that I have currently installed, while others are handled by gnome binary files.

My conclusion after playing with some symlinks is that file-roller looks for the binary executables on /usr/bin and not /opt/gnome/bin, which cause inkscape and gimp to work, since they install their binaries or symlinks on /usr/bin, while gnome programs like gedit and glade install on /opt/gnome/bin.

How to perform a test:
1. Open a compressed file with file-roller
2. Select a text file, for example a README.
3. Click on View Icon on top. It fails.
4. Open a shell, make a symlink to gedit as root
ln -s /opt/gnome/bin/gedit /usr/bin
5. Click the View Icon again, now it works.

Problem can be fixed by either providing symlink to basic gnome binaries on /usr/bin directory, or allowing file-roller to also check programs on /opt/gnome dir.